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Core: Interface based DataFile reader and writer API

arrow

build

core

data

flink

MR

ORC

parquet

spark

Status: Open (in progress).

apache/icebergnumber 12298

#12298 In apache/iceberg;

· pvary opened on Feb 17, 2025

Spark: Handle complex type in expression in RemoteScanPlanning

core

spark

Status: Open (in progress).

apache/icebergnumber 14882

#14882 In apache/iceberg;

· singhpk234 opened on Dec 18, 2025

[SPEC | CORE] : Allow table level override for scan planning

core

OPENAPI

spark

Status: Open (in progress).

apache/icebergnumber 14867

#14867 In apache/iceberg;

· singhpk234 opened on Dec 17, 2025

Spark 4.1: Display write metrics on SQL UI

core

spark

Status: Open (in progress).

apache/icebergnumber 15104

#15104 In apache/iceberg;

· manuzhang opened on Jan 21, 2026

Core: Detect and merge duplicate DVs for a data file and merge them before committing

bugSomething isn't workingSomething isn't working

core

data

spark

Status: Open (in progress).

apache/icebergnumber 15006

#15006 In apache/iceberg;

· amogh-jahagirdar opened on Jan 9, 2026

API: Use unsigned byte-wise comparison to fix UUID comparison bug

API

bugSomething isn't workingSomething isn't working

data

flink

parquet

Status: Open (in progress).

apache/icebergnumber 14500

#14500 In apache/iceberg;

· bodduv opened on Nov 4, 2025

Spark: Fix aggregate pushdown

API

spark

Status: Open (in progress).

apache/icebergnumber 15070

#15070 In apache/iceberg;

· psvri opened on Jan 17, 2026

Core: Move decision about remote scan planning from Spark to Core

core

spark

Status: Open (in progress).

apache/icebergnumber 15184

#15184 In apache/iceberg;

· nastra opened on Jan 30, 2026

[WIP] Spark 4.1: Migrate to new version framework in DSv2

API

core

spark

Status: Draft (not ready).

apache/icebergnumber 15240

#15240 In apache/iceberg;

· aokolnychyi opened on Feb 5, 2026